131115201201450 has 144 divisors (see below), whose sum is σ = 354834376958880. Its totient is φ = 34709480012160.

The previous prime is 131115201201449. The next prime is 131115201201521. The reversal of 131115201201450 is 54102102511131.

131115201201450 is a `hidden beast` number, since 1 + 3 + 1 + 1 + 1 + 5 + 2 + 0 + 1 + 201 + 450 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 45896352 + ... + 48669348.

It is an arithmetic number, because the mean of its divisors is an integer number (2464127617770).

Almost surely, 2^{131115201201450} is an apocalyptic number.

131115201201450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 131115201201450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177417188479440).

131115201201450 is an abundant number, since it is smaller than the sum of its proper divisors (223719175757430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131115201201450 is a wasteful number, since it uses less digits than its factorization.

131115201201450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2773781 (or 2773773 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 27.

Adding to 131115201201450 its reverse (54102102511131), we get a palindrome (185217303712581).

The spelling of 131115201201450 in words is "one hundred thirty-one trillion, one hundred fifteen billion, two hundred one million, two hundred one thousand, four hundred fifty".